Weather in San Antonio, Texas, United States in January
In an average January, San Antonio sees a daily high around 62°F and a low around 39°F, based on 1981–2026 of local climate records.
| Average high | 62°F |
|---|---|
| Typical high range | 46°F to 74°F |
| Average low | 39°F |
| Typical low range | 28°F to 49°F |
| Average daily precipitation | 0.10 in |
January records
The most extreme January on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total January accumulation.
High
Highest
87°F
2026-01-06
Lowest
30°F
1985-01-12
Low
Highest
65°F
2005-01-03
Lowest
16°F
1982-01-11
Feels-like
Highest
92°F
2026-01-06
Lowest
-4°F
1985-01-20
Humidity
Highest
16.8 g/m³
2005-01-02
Lowest
1.3 g/m³
1982-01-11
Wind
Highest
34 mph
1985-01-20
Lowest
4 mph
1991-01-01
Precip
Wettest
5.19 in
1991
Driest
0.20 in
2014
See San Antonio's live weather grade →
Visiting San Antonio in January? See how its comfort stacks up against where you live.
Compare San Antonio with your city →